LOSS PER SHARE - Computation of Basic and Diluted Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Computation of Basic and diluted loss per share:
Net loss	$ (91.6)	$ (153.4)	$ (841.2)	$ (514.4)
Weighted average shares outstanding—basic (in shares)	170.3	168.0	169.9	157.2
Basic loss per share (in dollars per share)	$ (0.54)	$ (0.91)	$ (4.95)	$ (3.27)
Diluted loss per share (in dollars per share)	$ (0.54)	$ (0.91)	$ (4.95)	$ (3.27)